Cita APA (7a ed.)

Jahn, I., & Schmitt, M. (2001). [Darwin & Co., 2]. Beck.

Cita Chicago Style (17a ed.)

Jahn, Ilse, y Michael Schmitt. [Darwin & Co., 2]. München: Beck, 2001.

Cita MLA (8a ed.)

Jahn, Ilse, y Michael Schmitt. [Darwin & Co., 2]. Beck, 2001.